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High brightness yellow and orange dot matrix LED modules simplify development of large-scale indoor and outdoor displays
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Rohm has expanded its family of dot matrix LED displays with two low weight, highly integrated 512 dot single colour units that will significantly simplify the design and implementation of large scale indoor and outdoor display screens. |
Combining high brightness yellow (LUM-512HY351) or high brightness orange (LUM-512HD351) output with low current operation, Rohm’s new LUM-512Hx351 single-colour 16 x 32 high-performance dot matrix displays feature 512 chip LEDs and all of the necessary driving and control circuitry for operation.
Combining multiple LUM-512Hx351 units together in either horizontal or vertical directions allows designers to quickly and easily create large-scale display applications such as passenger information systems and information boards.
The LUM-512Hx351 displays use AlGaInP surface mount yellow and orange chipLEDs that operate with typical wavelengths of 590nm and 612nm respectively. Maximum LED current consumption is just 2A in both cases. A dot pitch of 6mm results in display screen dimensions of 96 x 192mm, and typical brightness ratings are 2000cd/m2 for the yellow display and 3000cd/m2 in the case of the orange unit. Both modules weigh just 100g.
Based around a proprietary ASIC developed by Rohm, the display controller circuitry offers display data memory for two screens and operates with a 1/16 duty cycle. Maximum control circuit current consumption is rated at just 30mA. A built-in, potentiometer-based luminance adjustment circuit allows designers to closely match the luminance of multiple display units.
Designed to operate at temperatures of between –10 and 45ºC, the Rohm LUM-512Hx351 displays requires a typical LED and control circuit power supply voltage of 5V.
For more information on the full range of Rohm products available from Anglia please call +44 (0)1945 474747 or email info@anglia.com
